Ah I see, thank you for the explanation PCB rapid prototyping.
I have done something like this for PCAD2006 drill files. The program post-processes the Gerber and drill files created by PCAD2006. It also has the feature to round corners (radius 0.05mm) of rectangular pads. The Gerber files are made fit the new Gerber standard. PCAD follows an older Gerber standard.